Home / 2,108.48-2,908.80-1,268.96

Finding the Fourth Proportional to 2,108.48, 2,908.80 and 1,268.96

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Solution

The fourth proportional to 2,108.48, 2,908.80 and 1,268.96 is: 1,750.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,108.48 : 2,908.80 = 1,268.96 : x
  2. Step 2: Convert to fraction form
    2,108.48/2,908.80 = 1,268.96/x
  3. Step 3: Cross multiply
    2,108.48x = 2,908.80 × 1,268.96
  4. Step 4: Simplify right side
    2,108.48x = 3,691,150.85
  5. Step 5: Solve for x
    x = 3,691,150.85/2,108.48
  6. Step 6: Final answer
    x = 1,750.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.